06111039 is referenced by 40 patents and cites 26 patents.

The present invention provides a catalyst system that exhibits unexpected control of desired properties in polyolefin products. The catalyst system includes a titanium-supported catalyst in combination with a mixture of tetraethoxysilane (TEOS) and dicyclopentyldimethoxy-silane (DCPMS). This catalyst system has been found to be effective in making polypropylene and polypropylene copolymers having relatively high melt flow rates and moderately broad molecular weight distribution.

Title
Dual donor catalyst system for the polymerization of olefin
Application Number
192217
Publication Number
6111039
Application Date
December 19, 1996
Publication Date
August 29, 2000
Inventor
Homer Swei
Houston
TX, US
George Byron Georgellis
Houston
TX, US
Nemesio Delgado Miro
Seabrook
TX, US
Agent
Douglas W Miller
Assignee
Exxon Chemical Patents
TX, US
IPC
C08F 4/616
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